Budapest Mayor Gábor Demszky and Environment Minister Miklós Persányi laid the cornerstone for a Ft 138 billion (€521 million) sewage treatment plant on Csepel Island (Disctrict 21) on Wednesday.
The plant, the biggest environmental investment in the EU, will raise the amount of treated sewage released into the Danube from 50% to 92% when it is completed. EU funding will cover 65% of the cost of building the plant, the central budget is paying for 20% and the local council is paying the rest.
Currently, about 300,000 cubic meters of Budapest's untreated sewage flows into the Danube each day. The new plant will have capacity to treat a daily 350,000 cubic meters of sewage.
A consortium of France's Degremont and OTV France, along with Hungary's Alterra Rt and Hídépítő Rt, won a tender to build the plant in 2005.